Medicare Enrolled
Dr. Haris Zahoor, MD
Medical Oncology · Houston, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Consulting-driven
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Zahoor from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Zahoor
Dr. Haris Zahoor is a medical oncology specialist in Houston, TX, with 16 years of NPI registration. Based on federal Medicare data, Dr. Zahoor performed 112,003 Medicare services across 4,889 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zahoor received a total of $12,007 from 28 pharmaceutical and/or device companies across 58 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in medical oncology. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zahoor is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 16 years in practice
▲ Top 7% volume in TX
$12,007 industry payments
Medicare Practice Summary
Medicare Utilization ↗112,003
Medicare services
Top 7% in TX for medical oncology
4,889
Unique beneficiaries
$15
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~7,000 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
19,500 | $1 | $3 |
| Nivolumab injection (Opdivo) | 14,160 | $24 | $95 |
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
12,325 | $0 | $2 |
| Denosumab injection (Prolia/Xgeva) | 11,280 | $18 | $63 |
| Pembrolizumab injection (Keytruda) | 7,800 | $43 | $173 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
7,650 | $0 | $3 |
| Daratumumab injection (Darzalex) An injection containing daratumumab and hyaluronidase-fihj administered under the skin. |
5,940 | $38 | $201 |
| Paclitaxel chemotherapy injection | 5,597 | $0 | $1 |
| Epoetin alfa injection (Procrit) for anemia An injection of epoetin alfa containing 1000 units for use in patients not on end-stage renal disease (ESRD) dialysis. |
4,260 | $6 | $28 |
| Eflapegrastim injection, 0.1 mg An injection of eflapegrastim-xnst administered at a dose of 0.1 mg. |
3,300 | $25 | $83 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
2,641 | $0 | $1 |
| Injection, docetaxel, 1 mg | 2,232 | $1 | $11 |
| Injection, fosaprepitant (teva), not therapeutically equivalent to j1453, 1 mg | 1,800 | $0 | $3 |
| Anti-nausea injection (Aloxi/palonosetron) | 1,690 | $1 | $21 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
1,407 | $8 | $22 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,169 | $8 | $9 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
980 | $10 | $31 |
| Injection, granisetron hydrochloride, 100 mcg | 720 | $0 | $4 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
681 | $6 | $21 |
| Flow cytometry, additional marker An additional marker is tested during a flow cytometry procedure to analyze DNA or cells. This step adds specific data points to the initial analysis. |
570 | $18 | $57 |
| Injection, leucovorin calcium, per 50 mg | 528 | $3 | $25 |
| Pegfilgrastim injection, 0.5 mg An injection of pegfilgrastim, a medication that stimulates the production of white blood cells. This specific code applies to the brand-name drug and excludes biosimilar versions. |
480 | $88 | $726 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
460 | $92 | $285 |
| Fluorouracil injection, 500 mg Administration of a 500 mg dose of fluorouracil medication via injection. |
397 | $2 | $16 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
374 | $11 | $43 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
329 | $94 | $362 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
321 | $21 | $82 |
| Injection, gemcitabine hydrochloride, not otherwise specified, 200 mg | 317 | $3 | $23 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
316 | $10 | $44 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
298 | $132 | $376 |
| Carboplatin chemotherapy injection, 50 mg Administration of a 50 mg dose of carboplatin, a chemotherapy medication, via injection. |
261 | $2 | $17 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
254 | $60 | $201 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
182 | $7 | $19 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
130 | $47 | $184 |
| Physical therapy exercise, per 15 min A therapy session using exercises to improve strength, endurance, range of motion, and flexibility. Each 15-minute unit is billed separately. |
118 | $16 | $79 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
116 | $53 | $391 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
96 | $1 | $3 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
95 | $25 | $86 |
| Intravenous infusion of new drug or substance, 1 hour or less This procedure involves administering a new medication or substance directly into a vein through an existing access site. The infusion is completed within one hour or less. |
87 | $47 | $175 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
85 | $165 | $725 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 74 | $125 | $775 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
69 | $20 | $80 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
68 | $1,091 | $3,597 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
68 | $8 | $24 |
| Leuprolide acetate (for depot suspension), 7.5 mg | 67 | $130 | $1,400 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
63 | $53 | $204 |
| Unclassified drug A medication that does not fit into standard HCPCS or CPT classification categories. |
51 | $1 | $3 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
46 | $1 | $6 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
45 | $15 | $57 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
42 | $3 | $10 |
| New patient office visit, complex (60-74 min) | 42 | $154 | $500 |
| Irrigation of implanted venous access device This procedure involves flushing an implanted venous access device to clear blockages or maintain patency. It ensures the device remains functional for delivering medications or fluids. |
41 | $18 | $68 |
| On-body injector for subcutaneous injection A device is applied to the skin to automatically deliver a medication injection under the skin. |
39 | $14 | $54 |
| IV chemotherapy initiation with community continuation Initiation of an intravenous chemotherapy infusion in a clinic using clinic supplies, with continuation of the infusion in a community setting such as home or assisted living. |
37 | $117 | $344 |
| Intravenous push injection of new drug or substance A healthcare provider injects a new medication or substance directly into a vein using a push technique. |
35 | $39 | $151 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
32 | $24 | $89 |
| Quadrivalent influenza vaccine, cell-culture derived A flu shot containing four strains of influenza virus, produced using cell culture technology rather than eggs. This formulation is free from preservatives and antibiotics. |
26 | $33 | $83 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
26 | $28 | $41 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
26 | $2 | $8 |
| Flow cytometry DNA or cell analysis, first marker A laboratory test that uses a laser to analyze cells or DNA by detecting a specific marker on the cell surface or within the cell. |
25 | $49 | $177 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
25 | $106 | $385 |
| Phosphate level test A blood test that measures the amount of phosphate in your body. Phosphate is a mineral that helps keep bones and teeth strong. |
23 | $5 | $14 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
22 | $26 | $102 |
| Manual red blood cell count A laboratory test that manually counts the number of red blood cells in a blood sample. |
19 | $4 | $12 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
17 | $32 | $312 |
| Whole body nuclear medicine scan with CT A combined imaging procedure using nuclear medicine and CT scans to visualize the entire body. |
16 | $1,064 | $3,609 |
| Automated red blood cell count An automated laboratory test that measures the number of red blood cells in a blood sample. |
13 | $4 | $11 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
18.3% high complexity
75.8% medium
5.9% routine
Industry Payment Transparency
Open Payments through 2024 ↗$12,007
Total received (2018-2024)
Avg $1,715/year across 7 years
Top 35% in TX for medical oncology
28
Companies
58
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$5,800 (48.3%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$5,345 (44.5%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$862 (7.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$177
2023
$213
2022
$188
2021
$86
2020
$810
2019
$4,424
2018
$6,109
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Bayer HealthCare Pharmaceuticals Inc.
$5,800
Exelixis Inc.
$5,084
Amgen Inc.
$216
Janssen Scientific Affairs, LLC
$110
EMD Serono, Inc.
$77
E.R. Squibb & Sons, L.L.C.
$68
Celgene Corporation
$67
PFIZER INC.
$63
Eisai Inc.
$62
Seagen Inc.
$44
Daiichi Sankyo Inc.
$41
AVEO Pharmaceuticals, Inc.
$40
TerSera Therapeutics LLC
$36
Incyte Corporation
$33
Epizyme, Inc.,
$32
Gilead Sciences, Inc.
$32
G1 Therapeutics, Inc.
$24
ARRAY BIOPHARMA INC
$21
Aveo Pharmaceuticals, Inc.
$20
ABBVIE INC.
$19
Merck Sharp & Dohme LLC
$18
JAZZ PHARMACEUTICALS INC.
$17
Novartis Pharmaceuticals Corporation
$16
Pharmacyclics LLC, an AbbVie Company
$16
CTI BioPharma Corp.
$14
Novocure Inc.
$13
Dendreon Pharmaceuticals LLC
$13
Blueprint Medicines Corporation
$13
Top 3 companies account for 92.4% of total payments
Associated products mentioned in payments ›
ADCETRIS · AYVAKIT · BAVENCIO · Bavencio · COSELA · Cabometyx · Enhertu · Erleada · FOTIVDA · IBRANCE · IMBRUVICA · JAKAFI · Lenvima · MEKINIST · OPDIVO · OPZELURA · Optune · PROVENGE · Pomalyst · REBLOZYL · TAZVERIK · TUKYSA · Tepmetko · Trodelvy · VENCLEXTA · Vectibix · Vonjo · WELIREG · XALKORI · Xermelo · Xofigo · ZEPZELCA
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
The majority of payments (48%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Equivalent to $11 per 100 Medicare services performed
Geographic Context
Medical oncologists within 10 mi
183
Per 100K population
3.8
County median income
$73,104
Nearest hospital
WOMANS HOSPITAL OF TEXAS,THE
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Zahoor is a mixed practice specialist, with above-average Medicare volume (top 7% in TX), with consulting-driven industry engagement, with 16 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Zahoor experienced with iron infusion (injectafer)?
Based on Medicare claims data, Dr. Zahoor performed 19,500 iron infusion (injectafer) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Zahoor receive payments from pharmaceutical companies?
Yes. Dr. Zahoor received a total of $12,007 from 28 companies across 58 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Zahoor's costs compare to other medical oncologists in Houston?
Dr. Zahoor's average Medicare payment per service is $15. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Zahoor) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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